Lamella of high stability for a vulcanization mold, vulcanization mold with such lamellas, vehicle tire with tire tread in which sipes are produced by such lamellas

US6564840B2 · kind B2 · utility

Assignee

• Continental AG · DE

Inventors

• Klaus Kleinhoff · Rodenberg, DE
• Otto Beckmann · Hannover, DE

Key dates

• Filing date: Mar 24, 1999
• Grant date: May 20, 2003
• Expiry date: Mar 24, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S152/03
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A lamella for use in a vehicle tire vulcanization mold has projections and depression, wherein the height of the projections and the depth of the depressions extend substantially parallel to a peripheral surface of the tire tread of the vehicle tire to be molded in the vulcanization mold. Each one of the projections has a highest point-shaped location or top. Each one of the depressions has a lowest point-shaped location or crater. The projections and depressions are distributed according to a substantially uniform areal division. The areal division is defined by dividing lines extending in a dividing plane preferably centrally positioned between a first plane defined by the tops and a second plane defined by the craters. The dividing lines are comprised of three sets wherein the dividing lines within each one of the sets extend parallel to one another and wherein the dividing lines of different ones of the sets intercept one another at an angle of substantially 60° so that a grid of triangles is formed. Instead of point-shaped highest or lowest locations, line-shaped highest and lowest locations can be provided.